TECHNICAL PROPOSAL MICRO-STEREOSCOPE OR STEREO-MICROSCOPE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002300090001-7
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 15
• Document Creation Date: December 28, 2016
• Document Release Date: June 11, 2001
• Sequence Number: 1
• Publication Date: February 11, 1965
• Content Type: OUTLINE

. 9
Approved For Release 2001/08/13 : CIA-RDP78B0474~A0 2300090001-7
Prepared for:
11 February 65
Roslyn Station
Arlington, Virginia
Declass Review by NIMA / DoD
Approved For Release 2001/08/13 : CIA-RDP78BO474;7A002300090001-7
 ?
s
Approved For Release 2001/08/13: CIA-RDP78B0474
Introduction
Description
Optical System
Rotating Prisms
Objectives
Eyepieces
Rhomboid Prisms
Parallel Space
Camera Attachment
Working Distance
Mechanical Controls
Resumes
Figure I
Figure II
Figure III
Figure IV
Cost Summary
0
Page - 1
Page -2
Page -2
Page -2
Page - 3
Page - 3
Page - 3-4
Page - 4
Page - 4-5
Page - 5
Page - 6-7
Page - 7A - 7D
Page - 8
Page - 9
Page - 10
Page - 11
Page - 12
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
 4
Approved For Release 2001/08/13: CIA-RDP78BO474
=_ s pleased to submit the following pr
posal for the
design and fabrication of a new Micro-Stereoscope.
This unit will be designed similar to the isometric drawing
enclosed (see Fig. I) in this proposal and wi 1 be capable of
being utilized either as a Stereo-Microscope or a Micro-
Stereoscope without additional attachments.
It is our intent in designing this unit to make it as versatile
as possible without restricting optical or m chanical per-,
formance or ease of operation.
Approved For Release 2001/08/13: CIA-RDP78B0474VA002300090001-7
 ?
i
Approved For Release 2001/08/13: CIA-RDP78BO474
0
This Micro-Stereoscope will be a streamlined p ecision built unit
riggedly constructed for continuous operation an repeatibility.
This unit can easily be attached to many types o base or stand
and can be operated in either a horizontal or vex tical position
with all the adjustments and controls convenient to the operator.
OPTICAL SYSTEM (see Fig. II )
Two independent zoom systems are employed to allow for variation
in magnification between images. They can be echanically coupled
when stereo-microscope examination is required. These zoom
systems will have a 4 : 1 magnification ratio an will be designed
for maximum resolution and contrast in order t assure an over-
all performance of at least 5 lines per power.
ROTATING PRISMS
A rotating prism will be incorporated in each side of the optical
system for aligning the images. Each image wi l be capable of
3600 rotation and will not be effected in rotation by any other motion.
Approved For Release 2001/08/13 : CIA-RDP78BO4747AO02300090001-7
 0
Approved For Release 2001/08/13: CIA-RDP78BO474
?
All prisms and optical elements will be coated IInd protected where
necessary to assure maximum transmission a4 reflection, and will
be mounted securely to maintain alignment.
?
?
Three objectives will be utilized, one on each slide of the system
and one between the systems. They will be highly corrected
objectives that can easily be exchanged for various magnifications
required.
Several objectives will be available with magnifications of ]X, 2X
and 4X which will give magnifications of, from lOX to 160X when
a lOX eyepiece is utilized. g o0
Standard wide field eyepieces can be used with he micro-stereo-
scope, giving the operator a greater range of magnifications, if
required. Eye guards designed to rotate and to shield stray light
will be furnished.
A rhomboid prism will be utilized in each sie o the unit immedi-
ately above the objective. Each prism will be apable of swinging,
Approved For Release 2001/08/13 : CIA-RDP78BO4747AO02300090001-7
 S
Approved For Release 2001/08/13: CIA-RDP78BO474
0
for locating the images and for some adjustmenj in air space
For additional distances, each side of the micr -stereoscope can
be moved independently in or out to obtain additional alignment and
air space distance. The combined distance will be variable from
25mm to 200mm.
Before the stereo-microscope can be used, the
rhomboid prisms
must slide out to their stops to clear the stereo microscope objective
aperture. This objective will cover the two zoom apertures when
they are mechanically coupled together.
In order to obtain focus when both sides of the .nit are moved, we
will provide parallel space from the low end of
to the low end of the inclined prism, below the
the interpupillary distance need only be set onc,
any distant variation above the parallel space w
the rotating prism
eyepieces. Since
e for each operator,
ill not change focus.
After initial setting, distances in locating an ai' spread will not
change the optical path below the parallel spac .
CAMERA ATTACHMENT
As an optional feature, we can provide two ca era tubes similar to
- 4 -
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
 ?
0
Approved For Release 2001/08/13: CIA-RDP78B0474
to trinocular heads for photographing each imag , either as a
reference for later use, or for different magnifications of the
image. This can be accomplished by sliding in a prism to direct
the image through the camera tubes to the cam rats film plane.
The camera's image plane can be adjusted for focus and to
accommodate for various cameras. The focus t the film plane
can be viewed and focused with each inclined eyepiece, instead of
with a separate eyepiece and prism arrangement below each camera.
On the side of each camera tube slide will be a lock to prevent
movement. As for field coverage and critical locus, a ground
glass with a reticle can be incorporated in a par of wide field
eyepieces for photographic purposes.
?
WORKING DISTANCE:
With the objectives placed directly over the obj ct, we have allowed
for the maximum working distance depending upon on the magnifications
used. We will also design the mechanics and controls so that'no
interference is below the objective level, thus ~iving maximum
room for hands or. tools.
The field of view of the object is also a function of the magnification
of the system which will be about 2mm at 90X with a working distance
of 50mm. Lower magnifications will give a la ger field of view and
working distance.
?
Approved For Release 2001/08/13`: CIA-RDP78B047417A002300090001-7
 ?
?
?
Approved For Release 2001/08/13 : CIA-RDP78B0474 A002300090001-7
MECHANICAL CONTROLS
The following is a list of mechanical controls incorporated in this
micro-stereoscope (see Fig. III)
1. Interpupillary distance between 54mm - 78m m
2. Ocular tube movement + 4mm each.
3. Camera tube separation, 20mm each.
4. Camera tube lock
5. Camera directing prism
6. Rotation prism, 360? image rotation,
1800 mechanical
7. Zoom control, 4X ratio
8. Air space slide adjustments, 200mm
9. Rhomboid piviting approximately 1200
10. Eye guard rotation, 360?
11. Rhomboid retractor
Figure IV shows the movements of the slides and controls. Their
dimensions and travel can be changed within reason to suit the
customer's requirements.
12. Special stand and motions built to cust
specifications.
This micro-stereoscope combination will be fa')ricated to good
commercial practices with sound and practical
engineering.
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
 Approved For Release 2001/08/13: CIA-RDP78BO474
Each micro-stereoscope will have its own case and shipping box
Approved For Release 2001/08/13 : CIA-RDP78BO4747AO02300090001-7
 STATOTHR
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
Next 3 Page(s) In Document Exempt
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
 Approved For Release 2001/08/10CIA-RDP78BO4747A002300090001-7
FIGURE
Approved For Release 2001/08/13 : CIA-RDP78BO474FA002300090001-7
0
 Approved For Release 2001/08/13. IA-RDP78B0474
Approved For Releas JC.i ,A-RCL8B0474
 PRI5A1-J
5L/DE
OoI
O1 IZ I N
Approved For Release 2001/08/1obIA-RDP78B04747A002300090001-7
Approved For Relea 4AE CIP78B04747A002300090001-7
-6
?
 ? Approved For Release 2001/08/1-*IA-RDP78B04747AO02300090001-7 ?
t l
Approved For Release UP 8 , : C DP78B0474~ A002300090001-7
 Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7
STATOTHR
Approved For Release 2001/08/13 : CIA-RDP78B04747A002300090001-7